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package main
import (
"context"
"flag"
"io/ioutil"
"os"
"strings"
"github.com/mimecast/dtail/internal/clients"
"github.com/mimecast/dtail/internal/color"
"github.com/mimecast/dtail/internal/config"
"github.com/mimecast/dtail/internal/io/logger"
"github.com/mimecast/dtail/internal/io/signal"
"github.com/mimecast/dtail/internal/user"
"github.com/mimecast/dtail/internal/version"
)
// The evil begins here.
func main() {
var args clients.Args
var background string
var cfgFile string
var command string
var debugEnable bool
var displayVersion bool
var jobName string
var noColor bool
var sshPort int
userName := user.Name()
flag.BoolVar(&args.TrustAllHosts, "trustAllHosts", false, "Auto trust all unknown host keys")
flag.BoolVar(&debugEnable, "debug", false, "Activate debug messages")
flag.BoolVar(&displayVersion, "version", false, "Display version")
flag.BoolVar(&noColor, "noColor", false, "Disable ANSII terminal colors")
flag.IntVar(&args.ConnectionsPerCPU, "cpc", 10, "How many connections established per CPU core concurrently")
flag.IntVar(&args.Timeout, "timeout", 0, "Command execution timeout")
flag.IntVar(&sshPort, "port", 2222, "SSH server port")
flag.StringVar(&args.Discovery, "discovery", "", "Server discovery method")
flag.StringVar(&args.PrivateKeyPathFile, "key", "", "Path to private key")
flag.StringVar(&args.ServersStr, "servers", "", "Remote servers to connect")
flag.StringVar(&args.UserName, "user", userName, "Your system user name")
flag.StringVar(&background, "background", "", "Can be one of 'start', 'cancel', 'list' or empty")
flag.StringVar(&cfgFile, "cfg", "", "Config file path")
flag.StringVar(&command, "command", "", "Command to run")
flag.StringVar(&jobName, "name", "", "The job name (if run in background)")
flag.Parse()
config.Read(cfgFile, sshPort)
color.Colored = !noColor
if displayVersion {
version.PrintAndExit()
}
ctx := context.TODO()
logger.Start(ctx, logger.Modes{Debug: debugEnable || config.Common.DebugEnable})
args.What, args.Arguments = readCommand(command)
client, err := clients.NewRunClient(args, background, jobName)
if err != nil {
panic(err)
}
status := client.Start(ctx, signal.InterruptCh(ctx))
logger.Flush()
os.Exit(status)
}
func readCommand(command string) (string, []string) {
splitted := strings.Split(command, " ")
script := splitted[0]
if _, err := os.Stat(script); os.IsNotExist(err) {
var commandArgs []string
return command, commandArgs
}
commandArgs := splitted[1:]
bytes, err := ioutil.ReadFile(script)
if err != nil {
panic(err)
}
return string(bytes), commandArgs
}
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